Sugar-machine.



PATENTED JAN. 16, 1906.

0. B. EARTH.

SUGAR MACHINE.

APPLIOATION FILED APR.17, 1905.

My arm UNITED STATES zeariaar creme.

SUGAR-MACHINE.

Specification of Letters Patent.

Patented Jan. 16, 1906.

Appli ation fil d April 17, 1905. Serial No. 6,007.

To all whom it may concern.-

Be it known that I, OTTO B. BARTH. a citizen of the United States,residing at Loveland, in the county of Larimer and State of Colorado,have invented certain new and useful Improvements in Sugar-Machines andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

My'invention relates to improvements in machines for making sugar; andit consists in the construction, combination, and arrangement of deviceshereinafter described and claimed.

In the accompanying drawings, Figure 1 is a vertical sectional view of asugar-machine embodying my invention. Fig. 2 is a detail top plan viewof the bottom plate, and Fig. 3 is a similar view of the revolublevalve-plate.

The cylindrical box or drum 1 is divided by a horizontally-disposedpartition 2 into an upper compartment 3 and a lower compartment 4. Thesaid box or drum has a concentrically-disposed inner cylindricalperforated wall 5, which extends longitudinally therethrough.Vacuum-pipes 6 lead from the compartments 3 '4 of the box or drum to asuitable receiving-tank, which is not here shown. A plate 7 forms thebottom of the box or drum and is provided on one side witheccentricallydisposed openings 8. A blue-water pipe 9 extends through anopening in the center of the bottom plate and is provided with apacking-gland 10.

Within the center of the box or drum is a revoluble perforated tube 11,which is provided on its outer side with a spirally-disposed blade orwing 12, which extends from the upper to the lower end thereof and theouter edge of which bears against the inner side of the cylindricalinner wall 5.

A circular valve-plate 13 bears and is revoluble on the bottom plate 7and serves to center the perforated tube 11 and to space it from thecylindrical wall 5. Said valveplate has openings 14 to register with theopenings 8 of the bottom plate and has on its upper side, at a pointopposite said openings, a lug 15, which is engaged by-the lower end ofthe spiral blade or wing, so that the valve-plate is caused to revolvewith the perforated tube 11. The latter has a horizontal partition 16,which divides it into an upper compartment 17 and alower compartment 18.

The top plate 19 is steam-tight and is provided with an opening for thereception of a syrup-spout 20, which discharges on the spiral blade orwing in the space between the perforated wall 5 and the perforated tube11. A steam-pipe 21 discharges into the upper compartment of theperforated tube 11. Said tube is connected to a bevel-gear 22, which isengaged by a similar gear 23 on a driveshaft, whereby the perforated.tube 11, together with the spiral blade or wing which it carries and thevalve-plate, maybe rotated.

In the operation of the machine the material fed theretois workeddownwardly by the revolving spiral wing or blade which serves to scrapethe inner side of the perforated wall 5. The syrup passes through saidwall into the drum or box and is carried off by the vacuum-pipes. Thesugar is discharged by the valve-plate which is rotated by the spiralwing or blade as the openings come into register with those of thebottom plate. The sugar as thus discharged from the box or drum by saidvalve-plate drops into a compartment under the said box or drum, whichcompartment is formed by a basin 25, which is secured to the lower endof the box or drum, is here shown as of truncated inverted conical formand is provided withdownwardly-opening valves 26, which are hinged, asat 27, and are supported normally in closed position by means of springs28. In the bottom of the basin or chamber 25 is a stufiing-box 29,through which the pipes 9 extend.

The spring-closed valves in the bottom of the basin or compartment 25open from time to time as the sugar accumulates in the said basin orcompartment to automatically discharge the same.

The steam-pipe enables steam to be introduced into the upper compartmentof the perforated tube. The pipe 9 enables blue water to be introducedinto the lower compartment of the perforated tube;

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inven tionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

IIO

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A machine of the class described, comprising a drum having acylindrical perforated inner wall, divided into an upper and a lowercompartment and provided with vacuum pipes communicating with saidcompartments; a revoluble tubular perforated member in said drum, havingan upper and a lower compartment and a screw-wing, the latter coactingwith the inner wall of the drum, means to introduce steam and blue waterrespectively into the upper and lower compartments of the revolubleperforated tubular element, and means to discharge the sugar from thespace between said perforated element and the perforated inner wall ofthe drum.

2. In a machine of the class described, the combination of a drum havingan upper and a lower compartment and a perforated cylindrical innerwall, vacuum-pipes leading from the said compartments of the drum, arevoluble tubular perforated element in said drum, divided into upperand lower compartments and having a screw-wing to scrape the perforatedinner wall of the drum, means to introduce steam and blue waterrespectively into the upper and lower compartments of said revolubleperforated element, and a revoluble valve in the bottom of the said drumin the space between said revoluble perforated element and theperforated inner wall of the drum, substantially as described.

3. A machine of the class described comprising a drum having acylindrical perforated inner wall, divided into an upper and a lowercompartment, and provided with vacuumpipes communicating with saidcompartments; a revoluble tubular perforated member in said drum, havingan upper and a lower compartment and a screw-wing, the latter coactingwith the inner wall of the drum, means to introduce steam and bluewater, respectively, into the upper and lower compartments of therevoluble perforated tubular element, means to discharge the sugar fromthe space between the said perforated element and the perforated innerwall of the drum, a compartment below the drum to receive the sugardischarged from the said space, and means to discharge sugar from saidcompartment.

4. A machine of the class described comprising a drum having acylindrical perforated inner wall, divided into an upper and a lowercompartment, and provided with vacuum-pipes communicating with saidcompartments, a revoluble tubular perforated member in said drum, havingan upper and a lower compartment and a screw-wing, the latter coactingwith the inner wall of the drum, means to introduce steam and bluewater, respectively, into the upper and lower compartments of therevoluble perforated tubular element, means to discharge the sugar fromthe space between the said perforated element and the perforated innerwall of the drum, a compartment below the drum to receive the sugardischarged from the said space, and means to automatically dischargesugar from the said compartment.

5. A machine of the class described comprising a drum having acylindrical perforated inner wall, divided into an upper and a lowercompartment, and provided with vacuum pipes communicating with saidcompartments; a revoluble tubular perforated member in said drum, havingan upper and a lower compartment and a screw-wing, the latter coactingwith the inner wall of the drum, means to introduce steam and bluewater, respectively, into the upper and lower compartments of therevoluble perforated tubular element, means to discharge the sugar fromthe space between the said perforated element and the perforated innerwall of the drum, a compartment below the drum to receive the sugardischarged from the said space, and spring-closed valves toautomatically discharge sugar from said compartment.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

OTTO B. BARTI-I.

Witnesses GUSTAVE A. BARTH, L. B. BLAIR.

